Research of the Microstructure and Mechanical Properties of Copper and CuZn36 Developing during Deformation into the Equal Channel Speed Matrix with High-Intensity Cooling

2016 ◽  
Vol 684 ◽  
pp. 346-352 ◽  
Author(s):  
I.E. Volokitina ◽  
S.N. Lezhnev ◽  
E.P. Orlova ◽  
G.G. Kurapov
Keyword(s):  
Mechanical Properties ◽  
Liquid Nitrogen ◽  
Equal Channel Angular Pressing ◽  
High Intensity ◽  
Metal Matrix ◽  
Metal Structure ◽  
New Method ◽  
Combined Process ◽  
Angular Pressing ◽  
Pressing Process

The relevance of the work is to develop a new method of obtaining submicroscopic metal structure by combining equal channel angular pressing process of deformation and intensive cooling. The process carried out by the pressing of copper and CuZn36 through equal channel angular matrix cooled after the metal matrix of liquid nitrogen. Combined process reduces submicrostructure technology to produce metal

scholarly journals Effects of equal channel angular pressing and heat treatments on the microstructures and mechanical properties of selective laser melted and cast AlSi10Mg alloys

2021 ◽  
Vol 21 (3) ◽  
Author(s):  
Przemysław Snopiński ◽  
Mariusz Król ◽  
Marek Pagáč ◽  
Jana Petrů ◽  
Jiří Hajnyš ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Equal Channel Angular Pressing ◽  
Heat Treatments ◽  
Electron Backscattered Diffraction ◽  
Angular Pressing ◽  
Low Temperature Annealing ◽  
Transmission Electron ◽  
Before And After ◽  
The Impact

AbstractThis study investigated the impact of the equal channel angular pressing (ECAP) combined with heat treatments on the microstructure and mechanical properties of AlSi10Mg alloys fabricated via selective laser melting (SLM) and gravity casting. Special attention was directed towards determining the effect of post-fabrication heat treatments on the microstructural evolution of AlSi10Mg alloy fabricated using two different routes. Three initial alloy conditions were considered prior to ECAP deformation: (1) as-cast in solution treated (T4) condition, (2) SLM in T4 condition, (3) SLM subjected to low-temperature annealing. Light microscopy, transmission electron microscopy, X-ray diffraction line broadening analysis, and electron backscattered diffraction analysis were used to characterize the microstructures before and after ECAP. The results indicated that SLM followed by low-temperature annealing led to superior mechanical properties, relative to the two other conditions. Microscopic analyses revealed that the partial-cellular structure contributed to strong work hardening. This behavior enhanced the material’s strength because of the enhanced accumulation of geometrically necessary dislocations during ECAP deformation.

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